1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
xxMikexx [17]
3 years ago
12

4 HF(g)+SiO2(s) → SiF4(9)+2 H2O(9) Is the Si oxidized or reduced?

Chemistry
1 answer:
Airida [17]3 years ago
8 0

Answer:

Si is reduced since it loses the oxygen atom

You might be interested in
Which of the following is true for balancing equations?
algol [13]

Answer:

A.

Explanation:

An equation with the equal amount and proportion of atoms of each element on both sides of the reaction is commonly referred to as a balanced chemical equation.

The law of conservation of matter asserts that no observable and empirical change in the amount of matter occurs within a conventional chemical process. As a result, each element in the product would have the same equal amount or numbers of atoms as the reactants.

5 0
3 years ago
ILL GIVE POINTS TO WHOEVER HELPS!!!
kirza4 [7]
Yeah no one is gonna read all that babe.
4 0
3 years ago
In methane combustion, the following reaction pair is important: At 1500 K, the equilibrium constant Kp has a value of 0.003691
andre [41]

Explanation:

Let us assume that the value of K_{r} = 2.82 \times 10^{5} \times e^({\frac{-9835}{T}}) m^{6}/mol^{2}s

Also at 1500 K, K_{r} = 2.82 \times 10^{5} \times e^({\frac{-9835}{1500}}) m^{6}/mol^{2}s

                     K_{r} = 400.613 m^{6}/mol^{2}s

Relation between K_{p} and K_{c} is as follows.

                  K_{p} = K_{c}RT

Putting the given values into the above formula as follows.

                  K_{p} = K_{c}RT

         0.003691 = K_{c} \times 8.314 \times 1500

                K_{c} = 2.9 \times 10^{-7}

Also,     K_{c} = \frac{K_{f}}{K_{r}}

or,                K_{f} = K_{c} \times K_{r}

                               = 2.9 \times 10^{-7} \times 400.613

                               = 1.1617 \times 10^{-4} m^{6}/mol^{2}s

Thus, we can conclude that the value of K_{f} is 1.1617 \times 10^{-4} m^{6}/mol^{2}s.

6 0
3 years ago
The distance between two points on a map is 0.704 kilometers. What is the distance in meters?
loris [4]
704 meters is the answer
6 0
3 years ago
Read 2 more answers
What reaction type is depicted by the following equation? 2C2H2 + 5O2 4CO2 + 2H2O decomposition combination combustion single-re
Vladimir [108]

combustion is when you burn something in presence e of oxygen and the products will be mainly the CO2 and H2O

3 0
4 years ago
Read 2 more answers
Other questions:
  • What is the total amount of heat required to completely melt 347 grams of ice at t's melting point
    15·2 answers
  • When you exercise, the burning sensation that sometimes occurs in your muscles represents the buildup of lactic acid (HC3H5O3).
    7·1 answer
  • The shiny appearance of a metal is most closely related to the metal's
    9·2 answers
  • The majority of the mass of the atom is located in the _______. A) nucleus B) core electrons C) pions and quarks D) valence elec
    9·2 answers
  • NaOH has a molarity of 2.5 M and a volume of 4 Liters, how many moles are in<br> the solution?
    14·1 answer
  • Which is always the first step in dealing with an accident in the lab?
    5·2 answers
  • How many elements make up this compound C7H5(NO2)3
    8·1 answer
  • What do fossil fuels come from?
    12·1 answer
  • What is the atomic number of the element shown?<br> O A. 26<br> B. 27.0<br> C. 40.0<br> D. 13
    15·1 answer
  • In sience is copper a element or not a element
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!